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3.7V to 9V / 12V 18650 Lithium Battery Boost Step‑Up Module UPS – the all‑in‑one solution for reliable power management. Convert a single 18650 cell into a stable 9V or 12V output while providing integrated charge and discharge control for uninterrupted operation.
Product Overview
This compact module is designed for hobbyists, DIY electronics, and professional prototyping. It features a high‑efficiency step‑up converter, built‑in UPS protection, and an integrated charging circuit that supports 18650 Li‑Ion cells. Perfect for powering small devices, sensors, or remote modules when mains power is unavailable.
Key Highlights
- Input: 3.7 V (single 18650 Li‑Ion cell)
- Output options: 9 V or 12 V DC, selectable via jumpers
- Maximum output current: 1.5 A (continuous), 2 A peak
- Boost efficiency: up to 92 % under typical load
- Integrated UPS circuit – automatic switchover to battery when mains fail
- Smart charge/discharge control with over‑charge and over‑discharge protection
- Compact 30 mm × 20 mm footprint, ideal for PCB integration
- Operating temperature: –20 °C to +60 °C
- Package: SMT/through‑hole options available
Technical Specifications
Input Voltage: 3.6 V – 4.2 V (18650 Li‑Ion)
Output Voltage: 9 V or 12 V DC (fixed, selectable)
Output Current: 1.5 A continuous, 2 A peak
Efficiency: 90 %–92 % (typical)
Power Rating: 18 W (9 V) / 24 W (12 V)
Protection Features: Over‑charge, over‑discharge, short‑circuit, thermal shutdown
Dimensions: 30 mm × 20 mm × 5 mm (SMD); 35 mm × 25 mm × 10 mm (through‑hole)
Why Choose This Module?
With its integrated UPS functionality, you no longer need a separate power‑switch or battery management board. The module automatically detects mains loss, switches to battery, and keeps your device running without interruption. Its robust protection circuitry ensures safe operation for both the battery and connected loads, making it ideal for critical applications such as IoT gateways, portable medical equipment, and emergency backup systems.
Applications
- Portable electronics – laptops, tablets, handheld devices
- IoT and sensor networks requiring reliable backup power
- Emergency lighting and communication equipment
- DIY projects and educational kits for electronics enthusiasts
- Prototyping of low‑power, battery‑powered circuits
Upgrade your power management with this versatile, high‑efficiency 18650 boost module – the smart choice for continuous, safe, and efficient operation.
Price: $ 2.98